Anti-mold and fresh-keeping coated paper and preparation method thereof
A technology of coated paper and anti-mildew coating, which is applied in papermaking, coating, paper coating, etc., can solve the problems of affecting human health, short storage time, and poor storage effect, so as to inhibit the growth of mold and shorten the storage time. , the effect of prolonging the storage time
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[0030] The method for preparing the above mildew-proof and fresh-keeping coated paper according to an embodiment of the present invention comprises the following steps S1-S3:
[0031] S1. Form an anti-mildew coating on the first side of the base paper.
[0032] Specifically, the raw materials of each component are weighed according to the above ratio and mixed with water to make pulp to obtain an anti-mold coating, and then coated on the first side of the base paper to form an anti-mold coating after drying.
[0033]S2. Coating the ethanol solution of hollow porous polymer microspheres on the second side of the base paper, coating the slurry obtained by mixing the adsorbent and water on the second side, and forming a fresh-keeping coating after drying.
[0034] Thus, the fresh-keeping coating is composed of hollow porous polymer microspheres loaded with adsorbent, and the adsorbent is at least partially loaded inside the hollow porous polymer microspheres.
[0035] Preferably...
Embodiment 1
[0044] Coating anti-mildew paint on the first side of the base paper to form an anti-mildew coating, the anti-mildew coating includes 78% water-absorbing resin and 22% anti-mold agent, wherein the water-absorbing resin is composed of 7% polyvinyl alcohol 1788, 6% polyvinyl alcohol Vinyl alcohol 2488 and 87% methyl methacrylate - butyl acrylate - acrylic acid copolymer, antifungal agent is composed of 25% sodium ascorbate, 25% salicylamine and 50% carson.
[0045] The second side of the base paper is coated with an ethanol solution of hollow porous polymer microspheres, and the material of the hollow porous polymer microspheres is an acrylic ester copolymer. The adsorbent was obtained by weighing each component according to the following mass percentages: 62% potassium permanganate, 27% methylcyclopropene, 8% chromium trioxide, 2% activated carbon and 1% montmorillonite. Mix the adsorbent with water to obtain a slurry, the mass percent concentration of the adsorbent is 0.5%, co...
Embodiment 2
[0047] Coating anti-mildew paint on the first side of the base paper to form an anti-mildew coating, the anti-mildew coating includes 78% water-absorbing resin and 22% anti-mold agent, wherein the water-absorbing resin is composed of 7% polyvinyl alcohol 1788, 6% polyvinyl alcohol Vinyl alcohol 2488 and 87% methyl methacrylate - butyl acrylate - acrylic acid copolymer, antifungal agent is composed of 25% sodium ascorbate, 25% salicylamine and 50% carson.
[0048] The second side of the base paper is coated with an ethanol solution of hollow porous polymer microspheres, and the material of the hollow porous polymer microspheres is an acrylic ester copolymer. Mix potassium permanganate with water to obtain a slurry, the mass percentage concentration of potassium permanganate is 0.5%, coat the slurry on the second side, then put it in an environment of 20°C for slow drying for 5 hours, and then put it in an oven Dry at 60°C for 2 hours to form a fresh-keeping coating. According ...
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